Submission #963401

#	Time	Username	Problem	Language	Result	Execution time	Memory
963401		leo_2727	Coin Collecting (JOI19_ho_t4)	C++17	0 / 100	1 ms	604 KiB

joi2019_ho_t4

#include <algorithm>
#include <fstream>
#include <vector>
#include <queue>
#include <stack>
#include <iostream>
#include <cmath>
#include <queue>
#include <set>
#include <string>
#include <cstring>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#define F first
#define S second
#define PB push_back
using namespace std;
const long long MOD=1e9+7, INF=1e18;
const int INFI=1e9;
typedef long long ll;
typedef pair<int, int> ii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ii> vii;
typedef vector<pair<int, ii>> viii;
typedef vector<vii> vvii;
typedef vector<ll> vll;
typedef vector<vll> vvll;
bool vis[2005];
vii coords(2005);
vvll dist(2005, vll(3, INF));
vector<pair<ll, pair<int, ii>>> ar;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n;  cin>>n;
    if(n>1000)  return 0;
    memset(vis, false, 2005);
    for(int i=1;i<=2*n;i++)   cin>>coords[i].F>>coords[i].S;
    for(int i=1;i<=2*n;i++)
        for(int j=1;j<=n;j++)
            for(int k=1;k<=2;k++)
                ar.PB({(ll)abs((ll)coords[i].F-j)+(ll)abs((ll)coords[i].S-k), {i, {j, k}}});
    sort(ar.begin(), ar.end());
    for(int i=0;i<(int)ar.size();i++){
        ll dis=ar[i].F;
        int from=ar[i].S.F, x=ar[i].S.S.F, y=ar[i].S.S.S;
        if(dist[x][y]!=INF || vis[from]) continue;
        vis[from]=true;
        dist[x][y]=dis;
    }
    ll ans=0;
    for(int j=1;j<=n;j++)
        for(int i=1;i<=2;i++)
            ans+=dist[j][i];
    cout<<ans<<endl;
    return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 63